California earthquakes

M1.8 earthquake 11 km SW of Markleeville, California

A magnitude 1.8 earthquake struck 11 km SW of Markleeville, California on Sun, Dec 25, 1977, 12:26 PM PST (20:26 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.0 7 km S of Dayton, Nevada. This one was a foreshock.

Gardnerville Ranchos forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (ma), micro
Local time
UTC
1977-12-25 20:26:33 UTC
Depth
5.1 km (3.1 mi), shallow
Epicenter
38.634° N, 119.886° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.5 km horizontally, 4.5 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
257°, poorly surrounded by stations
Stations used
13

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 1.63 km WNW of Volcano, California · 17786 days ago · 5 km deep · 71 km away
  2. 3.07 km S of Dayton, Nevada · 17776 days ago · 5 km deep · 65 km away
  3. 2.611 km S of Soda Springs, California · 17764 days ago · 8 km deep · 78 km away
  4. 1.815 km WSW of Coleville, California · 17759 days ago · 5 km deep · 21 km away
  5. 3.313 km NE of Bridgeport, California · 17743 days ago · 10 km deep · 76 km away

Before

  1. 2.06 km E of Copperopolis, California · 17807 days ago · 8 km deep · 95 km away
  2. 1.57 km N of Ione, California · 17816 days ago · 20 km deep · 95 km away
  3. 1.614 km S of Kingvale, California · 17819 days ago · 3 km deep · 78 km away
  4. 2.74 km WSW of San Andreas, California · 17830 days ago · 47 km deep · 89 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1038261. Read Tue, Sep 22, 2026, 8:45 PM UTC.